作者:Dominique P. Arama、Vincent Lisowski、Eliana Scarlata、Pierre Fulcrand、Ludovic T. Maillard、Jean Martinez、Nicolas Masurier                                    
                                    
                                        DOI:10.1016/j.tetlet.2012.12.087
                                    
                                    
                                        日期:2013.3
                                    
                                    We herein report the synthesis of a series of 12 optically pure 3,4-dihydro-1H-pyrido-[1',2':1,21-imidazo[4,5-d][1,31diazepine-2,5-diones, which form a new family of azaheterocycle-fused [1,3]diazepines. The key step of the synthesis consists in a selective C-acylation of 2-amino-imidazo[1,2-a]pyridine by various natural amino-acids, followed by an intracarbonylation reaction. (C) 2012 Elsevier Ltd. All rights reserved.